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Dahle's Red-E-Mix


Frequently Asked Questions

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Q: How much gravel do I need for my project?

A: Gravel is sold by the cubic yard. To determine this, measure the length, width and depth of the area that you would like the gravel or sand for. With this information we can then figure out how many yards of material you will need for your project. You can also use the following formula:

Length in feet x width in feet x depth in feet divided by 27. (There are 27 cubic feet in 1 cubic yard.)

Example: Project is: 10' x 30' x 4"(deep)

10' x 30' x .33' = 99.9

99.9 ÷ 27 = 3.7 cubic yards

Q: How much concrete do I need for my project?

A: Concrete is sold in Cubic Yards. You can use the same formula as shown above for gravel to figure how many cubic yards you will need for your concrete project.

Q: Can I pick up sand or gravel with my truck or trailer?

A: We are happy to load your vehicle up to its stated weight limits.  For safety reasons you will need to make sure your truck is not overloaded when picking up aggregates from our plant. We can load your truck in 1/4 yard increments.

Q: Can I get sand or gravel delivered to my home?

A: We would be happy to deliver sand or gravel to your home. Our trucks can carry up to a 12 yard load. Call our office and we can set up a time that would be convenient for you to deliver the type of material that you need. 

Q: Can the trucks dump and spread the gravel?

A: Whether you would like it dumped in a pile or spread in an area just let our driver know and they will do their best to accommodate your request. Please be aware of any power lines or trees in the area and communicate this to our driver. 

Q: Do you have sand for a sandbox?

A: Yes!  Our washed mason sand is great for sandboxes.

Q: Are you open on Saturdays?

A: Yes, during the summer months we are open from 8AM to 12 noon.

Q: What makes good concrete?

A: Good quality concrete is dependent on many factors including the correct proportion of ingredients, placement, and curing.
Ingredients: The basic ingredients used in concrete consist of rock, sand, water, and cement. When water is added to cement a paste is formed. This paste needs to adhere to the surface of each rock and sand particle in order to create strength. Making sure that the rock and sand is washed clean will ensure that the cement paste adheres to each particle. The size of the rock and sand used affects the concrete workability and the strength of the concrete. The type of aggregate (rock and sand) used also makes a difference in strength. Hard durable aggregates are critical to obtaining high quality long-lasting concrete. Adding the right amount of water is important to the strength of the concrete also. Too much water can thin down the cement paste and cause concrete to be weaker.
Placement: It is imperative that the ground underneath the concrete is free of materials that can swell such as clay or bentonite. If these materials are not removed prior to placement, the concrete may crack or break due to pressures caused by swelling. It is also important to make sure that the ground underneath the concrete is compacted well. If the ground settles after placement, the concrete can crack or break from lack of support. Concrete slabs often have rebar placed in them to help reduce the possibility of pressures breaking the concrete. Fibermesh is also used to help reduce plastic shrinkage cracking (fine cracks that can form during the curing process) and add residual strength to the surface of the concrete. Cutting or scoring a large concrete slab into 10’ x 10’ sections will help control cracking along the cut rather than allowing cracking to wander throughout the slab.
Curing: Concrete that is placed during hot dry weather needs to be kept moist during the curing process to help keep the surface from drying out too quickly. Concrete that is placed during cold weather needs to be covered and sometimes heated depending on how cold the temperature is to make sure that it will not freeze. There are many products available to help aid in the curing process to ensure the concrete cures properly resulting in a beautiful durable finish. Many factors determine the rate at which the concrete will cure such as moisture in the ground, outside temperatures, wind, shade vs. direct sunlight, amount of concrete poured, etc… Finding an experienced concrete finisher to help with your project will help to ensure that your concrete is placed and cured properly.
The above information provides basic knowledge regarding concrete mixing, placement, and curing and does not cover all aspects related to these subjects. Information that is more detailed and technical may be found in other sources.

Q: What are "Admixtures"?

A: Admixtures are materials other than cement, rock, sand, and water that are added to a concrete mix to help with the performance of the concrete. Some admixtures have been around for a very long time, others are more recent. The chemistry of concrete admixtures is a complex topic requiring in-depth knowledge and experience. Common admixtures include accelerating admixtures, retarding admixtures, fly ash, air-entraining admixtures, water-reducing admixtures, and fibers. Admixtures can make concrete stronger, crack resistant, more durable, or waterproof. With admixtures, you can have more control over your concrete.

 

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Last update 8/8/2013.